Enantioselective Synthesis of Arene
<i>cis</i>
‐Dihydrodiols from 2‐Pyrones
作者:Xiao‐Wei Liang、Yunlong Zhao、Xu‐Ge Si、Meng‐Meng Xu、Jia‐Hao Tan、Zhi‐Mao Zhang、Cheng‐Gong Zheng、Chao Zheng、Quan Cai
DOI:10.1002/anie.201908284
日期:2019.10.7
An enantioselective chemical synthesis of arene cis-dihydrodiols has been realized from 2-pyrones through sequential ytterbium-catalyzed asymmetric inverse-electron-demand Diels-Alder (IEDDA) reaction of 2-pyrones and retro-Diels-Alder extrusion of CO2 . By using this strategy, a series of substituted arene cis-dihydrodiols can be obtained efficiently with high enantioselectivity (>99 % ee in many
The present invention provides a fused heterocyclic derivative having a strong kinase inhibitory activity and use thereof.
The present invention relates to a compound represented by the formula
wherein each symbol is as defined in the present specification, or a salt thereof.
Diastereo‐ and Enantioselective Inverse‐Electron‐Demand Diels–Alder Cycloaddition between 2‐Pyrones and Acyclic Enol Ethers
作者:Guanghao Huang、Régis Guillot、Cyrille Kouklovsky、Boris Maryasin、Aurélien de la Torre
DOI:10.1002/anie.202208185
日期:2022.10.17
The inverse-electron-demand Diels–Alder cycloaddition between 2-pyrones and acyclic enolethers was investigated. Bridged bicyclic lactones were obtained diastereo- and enantioselectively and converted into synthetically relevant polysubstituted enantioenriched cyclohexene and cyclohexadiene derivatives. Mechanistic evidence as well as DFT calculations point towards a stepwise mechanism.